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经营范围
发明名称
Thermal operator
摘要
申请公布号
US2324647(A)
申请公布日期
1943.07.20
申请号
US19410391757
申请日期
1941.05.03
申请人
RAY WILLIAM A
发明人
RAY WILLIAM A.
分类号
G05D23/275
主分类号
G05D23/275
代理机构
代理人
主权项
地址
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